DE50206358D1 - Method of making an ultralight and ultra-rigid all-ceramic reflector - Google Patents

Method of making an ultralight and ultra-rigid all-ceramic reflector

Info

Publication number
DE50206358D1
DE50206358D1 DE50206358T DE50206358T DE50206358D1 DE 50206358 D1 DE50206358 D1 DE 50206358D1 DE 50206358 T DE50206358 T DE 50206358T DE 50206358 T DE50206358 T DE 50206358T DE 50206358 D1 DE50206358 D1 DE 50206358D1
Authority
DE
Germany
Prior art keywords
ultralight
ultra
rigid
making
ceramic reflector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE50206358T
Other languages
German (de)
Inventor
Matthias Kroedel
Fred Ziegler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ECM Ingenieur Unternehmen fuer Energie und Umwelttechnik GmbH
Original Assignee
EADS Astrium GmbH
ECM Ingenieur Unternehmen fuer Energie und Umwelttechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EADS Astrium GmbH, ECM Ingenieur Unternehmen fuer Energie und Umwelttechnik GmbH filed Critical EADS Astrium GmbH
Priority to DE50206358T priority Critical patent/DE50206358D1/en
Application granted granted Critical
Publication of DE50206358D1 publication Critical patent/DE50206358D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
    • G02B7/183Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors specially adapted for very large mirrors, e.g. for astronomy, or solar concentrators
    • CCHEMISTRY; METALLURGY
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    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/524Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from polymer precursors, e.g. glass-like carbon material
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    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • C04B35/571Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide obtained from Si-containing polymer precursors or organosilicon monomers
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    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • C04B35/573Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide obtained by reaction sintering or recrystallisation
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    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605Treating the starting powders individually or as mixtures
    • C04B35/62625Wet mixtures
    • C04B35/6264Mixing media, e.g. organic solvents
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    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605Treating the starting powders individually or as mixtures
    • C04B35/62645Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/6267Pyrolysis, carbonisation or auto-combustion reactions
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    • C04B37/00Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/003Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts
    • C04B37/005Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts consisting of glass or ceramic material
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    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0022Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors
    • C04B38/0032Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors one of the precursor materials being a monolithic element having approximately the same dimensions as the final article, e.g. a paper sheet which after carbonisation will react with silicon to form a porous silicon carbide porous body
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/08Mirrors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/02Ceramics
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
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    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/80Optical properties, e.g. transparency or reflexibility
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38Non-oxide ceramic constituents or additives
    • C04B2235/3817Carbides
    • C04B2235/3826Silicon carbides
    • C04B2235/3834Beta silicon carbide
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422Carbon
    • C04B2235/424Carbon black
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/428Silicon
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52Constituents or additives characterised by their shapes
    • C04B2235/5208Fibers
    • C04B2235/5216Inorganic
    • C04B2235/524Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C04B2235/5248Carbon, e.g. graphite
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74Physical characteristics
    • C04B2235/76Crystal structural characteristics, e.g. symmetry
    • C04B2235/762Cubic symmetry, e.g. beta-SiC
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    • C04B2237/00Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/04Ceramic interlayers
    • C04B2237/08Non-oxidic interlayers
    • C04B2237/083Carbide interlayers, e.g. silicon carbide interlayers
    • CCHEMISTRY; METALLURGY
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    • C04B2237/00Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32Ceramic
    • C04B2237/38Fiber or whisker reinforced
    • C04B2237/385Carbon or carbon composite

Abstract

A reflector consists of a ceramic material (2) with a low surface weight, which is applied to the surface (4) of a preformed ceramic front plate (1), and monolithically connected to it. The ceramic material consists of a C/SiC foam. The front plate also consists of C/SiC and has raised and/or depressed areas.
DE50206358T 2001-05-23 2002-05-08 Method of making an ultralight and ultra-rigid all-ceramic reflector Expired - Lifetime DE50206358D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50206358T DE50206358D1 (en) 2001-05-23 2002-05-08 Method of making an ultralight and ultra-rigid all-ceramic reflector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10125554A DE10125554C2 (en) 2001-05-23 2001-05-23 Ultra-light and ultra-rigid all-ceramic reflector and method for producing and using such a reflector
DE50206358T DE50206358D1 (en) 2001-05-23 2002-05-08 Method of making an ultralight and ultra-rigid all-ceramic reflector

Publications (1)

Publication Number Publication Date
DE50206358D1 true DE50206358D1 (en) 2006-05-24

Family

ID=7686140

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10125554A Expired - Lifetime DE10125554C2 (en) 2001-05-23 2001-05-23 Ultra-light and ultra-rigid all-ceramic reflector and method for producing and using such a reflector
DE50206358T Expired - Lifetime DE50206358D1 (en) 2001-05-23 2002-05-08 Method of making an ultralight and ultra-rigid all-ceramic reflector

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10125554A Expired - Lifetime DE10125554C2 (en) 2001-05-23 2001-05-23 Ultra-light and ultra-rigid all-ceramic reflector and method for producing and using such a reflector

Country Status (6)

Country Link
US (1) US20030117730A1 (en)
EP (2) EP1262801B1 (en)
JP (1) JP2003075616A (en)
AT (2) ATE323293T1 (en)
DE (2) DE10125554C2 (en)
ES (1) ES2372284T3 (en)

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US6921177B2 (en) * 2003-02-24 2005-07-26 Raytheon Company High precision mirror, and a method of making it
DE102006031700A1 (en) * 2006-07-08 2008-01-10 Refratechnik Holding Gmbh Process for the production of basic carbonaceous products by casting and / or molding
DE102009052042A1 (en) * 2009-11-05 2011-05-12 Bayer Materialscience Ag Polycarbonate composition with improved flame retardancy for extrusion applications
FR2955398B1 (en) 2010-01-20 2012-03-23 Astrium Sas METHOD FOR PRODUCING A COMPOSITE MIRROR AND COMPOSITE MIRROR OBTAINED ACCORDING TO THE METHOD
DE102011007815B4 (en) * 2011-04-20 2016-09-29 Sgl Carbon Se Method for producing a ceramic component assembled from several preforms
US8980435B2 (en) 2011-10-04 2015-03-17 General Electric Company CMC component, power generation system and method of forming a CMC component
US20170050890A1 (en) * 2012-03-02 2017-02-23 Dynamic Material Systems, LLC Advanced Mirrors Utilizing Polymer-Derived-Ceramic Mirror Substrates
US10399907B2 (en) 2012-03-02 2019-09-03 Dynamic Material Systems, LLC Ceramic composite structures and processing technologies
US9764987B2 (en) 2012-03-02 2017-09-19 Dynamic Material Systems, LLC Composite ceramics and ceramic particles and method for producing ceramic particles and bulk ceramic particles
CN103722782B (en) * 2013-09-11 2016-01-27 太仓派欧技术咨询服务有限公司 A kind of ceramic matrix hybrid composite material and structure thereof
DE102015112036B4 (en) 2015-07-23 2017-05-11 Schott Ag Monolithic underlay for full surface support of a workpiece
CN107399117B (en) * 2017-07-24 2019-01-22 苏州宏久航空防热材料科技有限公司 A kind of ceramics-carbon-ceramic hybrid composite material
US10877237B2 (en) 2017-11-30 2020-12-29 Raytheon Company Multi-material mirror system
US11327208B2 (en) * 2018-05-30 2022-05-10 Raytheon Company Method of manufacture for a lightweight, high-precision silicon carbide mirror assembly
US11858236B2 (en) * 2020-01-28 2024-01-02 Pexco Aerospace, Inc. Foam core mirror configured for interior aerospace applications and a process of implementing the same

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US4856887A (en) * 1987-04-01 1989-08-15 Hughes Aircraft Company Lightweight silicon carbide mirror
DE3724156A1 (en) * 1987-07-22 1989-02-02 Norddeutsche Affinerie METHOD FOR PRODUCING METALLIC OR CERAMIC HOLLOW BALLS
US5002378A (en) * 1990-08-03 1991-03-26 Litton Systems, Inc. Light weight cooled mirror
DE4220472C2 (en) * 1992-03-05 2002-08-22 Industrieanlagen Betriebsges Process for the production of lightweight reflectors using silicon wafers
FR2732336B1 (en) * 1995-03-29 1997-06-20 Aerospatiale PROCESS FOR DEVELOPING A LIGHT SIC STRUCTURE, OF THE SANDWICH TYPE WITH A HONEYCOMB CORE, AND STRUCTURE THUS OBTAINED
DE19609784A1 (en) * 1996-03-13 1997-09-18 Jurca Optoelektronik Gmbh Apparatus for laser beam deflection
DE19837768A1 (en) * 1998-08-20 2000-03-09 Ecm Ingenieur Unternehmen Fuer Process for the production of highly rigid lightweight structures (measuring and clamping tables, measuring benches, guide rails and tracks, machine beds and tables) especially for measuring, clamping and. Machining purposes made of fiber-reinforced ceramic
US6206531B1 (en) * 1999-05-25 2001-03-27 Ultramet Lightweight precision optical mirror substrate and method of making
EP1138654B9 (en) * 2000-03-31 2009-03-04 ECM Ingenieur-Unternehmen für Energie-und Umwelttechnik GmbH Process for Making a carbon fibre reinforced ceramic element with a hard ceramic and pore-free coating

Also Published As

Publication number Publication date
EP1600798A2 (en) 2005-11-30
JP2003075616A (en) 2003-03-12
DE10125554C2 (en) 2003-06-18
ES2372284T3 (en) 2012-01-18
EP1600798B1 (en) 2011-09-21
ATE323293T1 (en) 2006-04-15
EP1262801A1 (en) 2002-12-04
EP1262801B1 (en) 2006-04-12
EP1600798A3 (en) 2005-12-21
DE10125554A1 (en) 2002-12-12
US20030117730A1 (en) 2003-06-26
ATE525666T1 (en) 2011-10-15

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